Minerals from Different Locations

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$14.00 M313c  Here is a very nice, above average quality, larger Pyrite nugget from Peru.  It measures over 3" x 2" x 1 1/2" and has a natural shiny finish.  This cool Pyrite nugget has Quartz scattered about and is a one of a kind, very well defined specimen that will not be duplicated.

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Pyrite, or Iron Pyrite, is an Iron sulfide with isometric Crystals that usually appear as cubes.  It is brittle and can break or powder easily.  Its metallic luster and brass yellow hue have earned it the nickname of "fool's gold" due to many miners mistaken it for the real thing.  Ironically, small quantities of actual gold are sometimes found in Pyrite.  It is the most common of the sulfide minerals and is usually found with other sulfides or oxides in Quartz veins, sedimentary or metamorphic rocks. 

pyrite

Pyrite Nugget


$18.00 M314b   This is a nice Apatite crystal from the Yates Mine, Otter Lake, Quebec, Canada.  It has a pretty green color mixed with purple. The specimen measures over 2 1/4" x 1 5/8" x 1 1/2".  It is an interesting addition for your collection. 

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Apatite is a part of the phosphate group of minerals that was formed in igneous rocks and in metamorphosed limestone.  Apatite is translucent or transparent and usually green in color but can be colorless, white, yellow, bluish, reddish, brown or purple. 

apatite

Apatite


$36.00 M315b  Here is a very nice quality specimen of Green Tourmaline from Brazil. This unique piece is an interesting mixture having Mica mostly along one edge and some Watermelon Tourmaline on an end. This beautiful mineral measures 5 1/4" x 3 3/8" x over 1 3/4" and has a natural, unpolished appearance with sparkly iridescence.   A very nice, unique specimen.

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The Tourmaline mineral group is chemically one of the most complicated groups of Silicate minerals.  Its composition varies widely with Sodium, Calcium, Iron, Magnesium, Lithium, Aluminum, Boron and other elements.  It has a wide variety of colors including black, blue-black, brown, yellow, red, green, pink and is rarely colorless.  This mineral is found in igneous rocks, like Granite Pegmatite, and metamorphic rocks such as Schist and Marble.

tourmaline

Green Tourmaline

$16.00 M305c   Here is an Apophyllite-Quartz mineral combination. This amazing mineral measures 4" x nearly 4" x 2" and has a super sparkly appearance.  This material is from Jalgaon, India. A great way to begin your mineral collection!!

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Apophyllite, a Zeolite, is Silicate mineral with very well defined clear Crystals and is very popular as a collector's mineral.  The Crystal structure will refract like in obvious rainbows and can form "natural pyramids" when tumbled.

apophyllite

Apophyllite-Quartz


$20.00

M316c  This is a nice piece of Libyan glass. This piece measures nearly 1 3/4" x 1 3/8" x 5/8". This piece has an interesting green color in an unusual shape making it even more mysterious and unique. Very cool!

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Libyan Desert Glass is found on the Libyan-Egyptian border. It is around 26 to 29 million years old. This  unusual substance is by no means a new scientific discovery; having been known of since the early 1930s, but what has puzzled scientists is how it came to be in this remote and inhospitable area called the Great Sand Sea of Egypt. This barren frontier between the Libyan and Egyptian borders is a vast desert area with not a single water source for 150,000 square miles.

libyan glass

Libyan Glass


$20.00 M300c  This is a very pretty, desert Sand Selenite specimen from Morocco. This specimen measures over 4 3/4" x 3" x 2 3/8".  This unusual piece has a soft Copper Brown color with a real unique shape.  A one of a kind gift for that one of a kind person.

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Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, is a variety of Crystalline Gypsum.  Gypsum is a very soft mineral composed of Calcium Sulfate.  Desert Roses are rosette shaped Gypsum with outer druze of sand or with sand throughout and often sand colored. 

selenite rose

Desert Rose


$30.00 M317b   Here is an interesting find.  This is a very nice specimen of Stibnite from China.  It measures 2 1/4" x 1 1/4" x  1 1/4" and has a sparkly Grey metallic color.  This is an interesting specimen that has an unique shape and appearance.

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Stibnite, also known as Antimonite, is a Sulfide mineral that forms grey Crystals.  It is the most important source for the rare Metalloid Antimony.  It is used in the manufacture of fireworks, batteries, safety matches and mascara.

stibnite

Stibnite

$40.00 M302b   This is a nice quality and beautiful specimen of Malachite-Azurite from Zaire, Africa. It has a good mix of blue Azurite and the green Malachite and is a natural unpolished state in an interesting design. The specimen measures over 5" x 3 5/8" x nearly 2". A great addition for any collection.

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Malachite is a Copper Carbonate mineral that often forms botryoidal, fibrous or stalagmitic masses.  It is often the result of the weathering of Copper Ores and is commonly found with Azurite, Goethite and Calcite.  It is typically associated with Copper deposits including Limestone which is the source of the Carbonate.  Malachite is found in many regions world wide and is usually shaded green in color.

malachite azurite

Malachite-Azurite

$10.00 M306c  This is an interesting Barite specimen from the Elk Creek area of Meade County, South Dakota.  These nice light Honey Golden colored Barite Crystals rest on a Limestone matrix. The entire specimen measures 4" x 2 5/8" x 1 1/2" and has a nice unique appearance.   A very cool specimen.

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Barite is a mineral consisting of Barium sulfate and is generally white or colorless.  It is used in the manufacture of paints and paper.  Although Barite contains a 'heavy' metal, Barium, it is not considered to be a toxic chemical because of its extreme insolubility.

mineral

Golden Barite

$14.00

M309b  This is something different for any collector.  Here is a very nice, very pretty Selenite Crystal from Mexico.  It measures over 4 1/4" x 3 3/8" x nearly 1 1/2" and has a natural shiny appearance.  A great conversation piece or use it wire wrap a new piece of jewelry.

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Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, are the four Crystalline varieties of Gypsum.  It is a very soft material composed of Calcium Sulfate.  Selenite is often transparent and colorless.  If color is present it is often due to impurities or presence of other minerals. 

selenite

Selenite Crystal

$45.00 M311c    Here is a nice, above average quality,  Sand Selenite Rose from Mexico.  This specimen measures 4 3/4" x 4 1/4" x 4" and has a soft Grey color.  This is a unique mineral that would make a nice addition to your collection.

Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, is a variety of Crystalline Gypsum.  Gypsum is a very soft mineral composed of Calcium Sulfate.  Gypsum Flowers are rosette shaped Gypsum with spreading fibers and can include an outer druze of sand or with sand throughout.  The difference between Desert Roses and Gypsum Flowers is that Desert Roses look like roses, whereas, gypsum flowers are a myriad of shapes.

sand rose

Sand Selenite Rose

$35.00 M307b  This is an interesting mineral combination!  Here is an Apophyllite-Stilbite mix. This fantastic mineral measures 4 1/2" x 3 1/4" x 2 7/8" and has a super sparkly appearance.  A great way to begin your mineral collection with a super combo mineral!!

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Apophyllite, also a Zeolite, is Silicate mineral with very well defined clear Crystals and is very popular as a collector's mineral.  The Crystal structure will refract like in obvious rainbows and can form "natural pyramids" when tumbled.

Stilbite is another Silicate mineral from the Zeolite family.  It is often characterized by its sheaf like aggregates.  The color is usually white and when the cleavage is perfect, will have a distinct pearly luster.

apophyllite stilbite

Apophyllite-Stilbite

$35.00 M304c   Here is something different for the mineral collector.  This is a very nice, bright Yellow Pyrite and White Quartz specimen in a dark Slate matrix.  It measures 3 1/2" x 5 1/4" x 1 1/4" and does not have any polish.  A really neat, unique mineral to add to your collection.

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Sulfur is an abundant, tasteless, multivalent non metal mineral.  In its native form, it is a yellow crystalline solid.  It can be found as a pure element or as Sulfide and/or Sulfate minerals.  It is primarily used commercially in fertilizers but is also widely used in gunpowder, matches, insecticides and fungicides.  It may have a faint odor similar to that of matches which is often from the composition of the hydrogen in the sulfuric compounds.  When heated, Sulfur will turn into a blood red liquid and when burned it emits a blue flame and the peculiar, notable odor.

mineral

Pyrite-Quartz

$28.00 M303b  Here is a very interesting Apophyllite - Prehnite specimen.  It measures 5 3/4" x 2 7/8" x 1 3/4" and has a nice sparkly appearance.  Close observation will reveal many, many Crystals on the matrix.  This very different and pretty mineral is from the Mumbai area of India.  Absolutely amazing.

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Prehnite is a Phyllosilicate mixture of Calcium and Aluminum.  Although it is not a Zeolite, it is often associated with them and with Datolite and Calcite, in veins and cavities of Basaltic rocks, sometimes in Granites, Syenites or Gneisses.  The color varies from light green to grey to white to yellow or a mix of colors.  It is translucent.

Apophyllite, also a Zeolite, is Silicate mineral with very well defined clear Crystals and is very popular as a collector's mineral.  The Crystal structure will refract like in obvious rainbows and can form "natural pyramids" when tumbled.

prehnite

Prehnite

$65.00 M301b  Here is an above average quality of a larger specimen of Hemimorphite Crystals setting on a dark Rust base of Limonite.  It measures  6 1/4" x over 5 1/2" x 2 7/8" with a natural rough appearance and many differently shaped translucent Grey and Clear Crystals.  A different mineral for the different collector.  This material is from Mexico.

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Hemimorphite is a sorosilicate mineral that is chiefly associated with Smithsonite.  It commonly forms crystalline crusts and layers and also massive, granular, rounded aggregates or finely shaped clusters of crystals.  It may fluorescence a strong green in UV short wave light and weak pink in UV long wave light.

Limonite is an ore consisting of a mixture of hydrated Iron Oxide-Hydroxide of varying composition of minerals such as Goethite, Lepidocrocite, or Jarosite.  It has been mined with Hematite as an Ore for the production of Iron. Limonite is heavy and has a yellow-brown color.  It is often used as the pigment ochre in many paints.

mineral

Hemimorphite-Limonite

$12.00 M308b  This is a Ruby Mica set of specimens.  It is approximately 5 pieces or the equivalent equal to 1 pound.  The pieces range in measurements of 2" to over 6".  This Muscovite Mica is mined in Custer County, South Dakota and will be shipped to you as it comes out right from the mine.  A great choice in minerals for any collector.  Please remember these pieces do come in random sizes, therefore no choice can be given.

Mica is from the group of sheet Silicate minerals.  Mica is widely distributed and occurs in igneous, metamorphic and sedimentary regions throughout the world.  Large Mica Crystals are used for various applications and are typically mined from Granitic Pegmatites.  It has a high dielectric strength and excellent chemical stability which makes it favorable in the manufacturing of capacitors for radio frequency applications.  It is also used in the manufacturing of glass that is used in stoves and kerosene heaters because it is heat resistant.

mica

Ruby Mica

$20.00 M318c    Here is a nice, above average quality,  Sand Selenite Rose from Mexico.  This specimen measures over 4 1/2" x 3 1/4" x nearly 2 1/2" and has a soft Grey color.  This is a unique mineral that would make a nice addition to your collection.

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Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, is a variety of Crystalline Gypsum.  Gypsum is a very soft mineral composed of Calcium Sulfate.  Gypsum Flowers are rosette shaped Gypsum with spreading fibers and can include an outer druze of sand or with sand throughout.  The difference between Desert Roses and Gypsum Flowers is that Desert Roses look like roses, whereas, gypsum flowers are a myriad of shapes.

sand rose

Sand Selenite Rose

$30.00 M312b  Here is a very pretty and nice specimen of Sphaerocobaltite from Zaire in Africa. It measures 3 1/4" x 2 5/8" x 1 5/8" and has a natural sparkly shine. This specimen has a natural hot Pink color with white and black mixed in. Just an awesome specimen of a rare mineral for your collection!

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Sphaerocobaltite, also known as Cobaltocalcite or Cobaltian-calcite, is a colorful and beautiful mineral.  The deep rose-red to pink color it has makes is easy to confuse with Rhodochrosite or Stichtite as all have the similar red to pink colors. Impure specimens can be shades of pink to pale brown. It is found as crusts and small crystals in many cobalt ore locations.

cobaltian calcite

Sphaerocobaltite

$35.00 M310c  This is a very pretty, above average quality, larger, desert Selenite flower specimen from Mexico. This specimen measures 8" x 5" x 3 3/4". This unusual piece has a soft Beige color with White accents resulting in a real unique shape.  A one of a kind gift for that one of a kind person.

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Selenite, also known as Satin Spar, Desert Rose and Gypsum Flower, is a variety of Crystalline Gypsum.  Gypsum is a very soft mineral composed of Calcium Sulfate.  Desert Roses are rosette shaped Gypsum with outer druze of sand or with sand throughout and often sand colored. 

selenite rose

Selenite Rose

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